/* A GNU-like <signal.h>.
- Copyright (C) 2006-2008 Free Software Foundation, Inc.
+ Copyright (C) 2006-2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
#if defined __need_sig_atomic_t || defined __need_sigset_t
/* Special invocation convention inside glibc header files. */
Also, mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */
#include <sys/types.h>
+/* On AIX, sig_atomic_t already includes volatile. C99 requires that
+ 'volatile sig_atomic_t' ignore the extra modifier, but C89 did not.
+ Hence, redefine this to a non-volatile type as needed. */
+#if ! @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@
+typedef int rpl_sig_atomic_t;
+# undef sig_atomic_t
+# define sig_atomic_t rpl_sig_atomic_t
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif
+#if @GNULIB_SIGNAL_H_SIGPIPE@
+# ifndef SIGPIPE
+/* Define SIGPIPE to a value that does not overlap with other signals. */
+# define SIGPIPE 13
+# define GNULIB_defined_SIGPIPE 1
+/* To actually use SIGPIPE, you also need the gnulib modules 'sigprocmask',
+ 'write', 'stdio'. */
+# endif
+#endif
+
+
#if !@HAVE_POSIX_SIGNALBLOCKING@
/* Maximum signal number + 1. */
handler. */
extern void (*signal (int sig, void (*func) (int))) (int);
+# if GNULIB_defined_SIGPIPE
+
+/* Raise signal SIG. */
+# undef raise
+# define raise rpl_raise
+extern int raise (int sig);
+
+# endif
+
#endif /* !@HAVE_POSIX_SIGNALBLOCKING@ */
+
#if !@HAVE_SIGACTION@
# if !@HAVE_SIGINFO_T@
#endif /* !@HAVE_SIGACTION@, !@HAVE_STRUCT_SIGACTION_SA_SIGACTION@ */
+/* Some systems don't have SA_NODEFER. */
+#ifndef SA_NODEFER
+# define SA_NODEFER 0
+#endif
+
+
#ifdef __cplusplus
}
#endif